gcc/config/h8300/h8300-protos.h

   1 /* Definitions of target machine for GNU compiler.
   2    Renesas H8/300 version
   3    Copyright (C) 2000-2021 Free Software Foundation, Inc.
   4    Contributed by Steve Chamberlain (sac@cygnus.com),
   5    Jim Wilson (wilson@cygnus.com), and Doug Evans (dje@cygnus.com).
   6
   7 This file is part of GCC.
   8
   9 GCC is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 3, or (at your option)
  12 any later version.
  13
  14 GCC is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with GCC; see the file COPYING3.  If not see
  21 <http://www.gnu.org/licenses/>.  */
  22
  23 #ifndef GCC_H8300_PROTOS_H
  24 #define GCC_H8300_PROTOS_H
  25
  26 /* Declarations for functions used in insn-output.c.  */
  27 #ifdef RTX_CODE
  28 extern unsigned int compute_mov_length (rtx *);
  29 extern const char *output_plussi (rtx *, bool);
  30 extern unsigned int compute_plussi_length (rtx *, bool);
  31 extern const char *output_a_shift (rtx *);
  32 extern unsigned int compute_a_shift_length (rtx, rtx *);
  33 extern const char *output_a_rotate (enum rtx_code, rtx *);
  34 extern unsigned int compute_a_rotate_length (rtx *);
  35 extern const char *output_simode_bld (int, rtx[]);
  36 extern void final_prescan_insn (rtx_insn *, rtx *, int);
  37 extern int h8300_expand_movsi (rtx[]);
  38 extern machine_mode  h8300_select_cc_mode (RTX_CODE, rtx, rtx);
  39 extern void notice_update_cc (rtx, rtx_insn *);
  40 extern const char *output_logical_op (machine_mode, rtx *);
  41 extern unsigned int compute_logical_op_length (machine_mode,
  42                                                rtx *);
  43
  44 extern int compute_logical_op_cc (machine_mode, rtx *);
  45 extern int compute_a_shift_cc (rtx, rtx *);
  46 #ifdef HAVE_ATTR_cc
  47 extern enum attr_cc compute_plussi_cc (rtx *);
  48 #endif
  49 extern void h8300_expand_branch (rtx[]);
  50 extern void h8300_expand_store (rtx[]);
  51 extern bool expand_a_shift (machine_mode, enum rtx_code, rtx[]);
  52 extern int h8300_shift_needs_scratch_p (int, machine_mode, rtx_code);
  53 extern int expand_a_rotate (rtx[]);
  54 extern int fix_bit_operand (rtx *, enum rtx_code);
  55 extern int h8300_adjust_insn_length (rtx, int);
  56 extern void split_adds_subs (machine_mode, rtx[]);
  57
  58 extern int h8300_eightbit_constant_address_p (rtx);
  59 extern int h8300_tiny_constant_address_p (rtx);
  60 extern int byte_accesses_mergeable_p (rtx, rtx);
  61 extern int same_cmp_preceding_p (rtx_insn *);
  62 extern int same_cmp_following_p (rtx_insn *);
  63
  64 /* Used in builtins.c */
  65 extern rtx h8300_return_addr_rtx (int, rtx);
  66
  67 /* Classifies an h8sx shift operation.
  68
  69    H8SX_SHIFT_NONE
  70         The shift cannot be done in a single instruction.
  71
  72    H8SX_SHIFT_UNARY
  73         The shift is effectively a unary operation.  The instruction will
  74         allow any sort of destination operand and have a format similar
  75         to neg and not.  This is true of certain power-of-2 shifts.
  76
  77    H8SX_SHIFT_BINARY
  78         The shift is a binary operation.  The destination must be a
  79         register and the source can be a register or a constant.  */
  80 enum h8sx_shift_type {
  81   H8SX_SHIFT_NONE,
  82   H8SX_SHIFT_UNARY,
  83   H8SX_SHIFT_BINARY
  84 };
  85
  86 extern enum h8sx_shift_type h8sx_classify_shift (machine_mode, enum rtx_code, rtx);
  87 extern int h8300_ldm_stm_parallel (rtvec, int, int);
  88 #endif /* RTX_CODE */
  89
  90 #ifdef TREE_CODE
  91 extern int h8300_funcvec_function_p (tree);
  92 extern int h8300_eightbit_data_p (tree);
  93 extern int h8300_tiny_data_p (tree);
  94 #endif /* TREE_CODE */
  95
  96 extern int h8300_can_use_return_insn_p (void);
  97 extern void h8300_expand_prologue (void);
  98 extern void h8300_expand_epilogue (void);
  99 extern int h8300_current_function_interrupt_function_p (void);
 100 extern int h8300_current_function_monitor_function_p (void);
 101 extern int h8300_initial_elimination_offset (int, int);
 102 extern int h8300_regs_ok_for_stm (int, rtx[]);
 103 extern int h8300_hard_regno_rename_ok (unsigned int, unsigned int);
 104 extern bool h8300_move_ok (rtx, rtx);
 105
 106 struct cpp_reader;
 107 extern void h8300_pr_interrupt (struct cpp_reader *);
 108 extern void h8300_pr_saveall (struct cpp_reader *);
 109 extern enum reg_class  h8300_reg_class_from_letter (int);
 110 extern unsigned int    h8300_insn_length_from_table (rtx_insn *, rtx *);
 111 extern const char *    output_h8sx_shift (rtx *, int, int);
 112 extern bool            h8300_operands_match_p (rtx *);
 113 extern bool            h8sx_mergeable_memrefs_p (rtx, rtx);
 114 extern poly_int64      h8300_push_rounding (poly_int64);
 115
 116 #endif /* ! GCC_H8300_PROTOS_H */